Jack and Annie are whisked away on another exciting adventure in the fifteenth installment of the Magic Tree House series which includes short sentences and lots of dialogue for beginning readers. Simultaneous.

The #1 bestselling chapter book series of all time celebrates 25 years with new covers and a new, easy-to-use numbering system!

"Beware of Vikings!" warns Morgan. Then Jack and Annie are whisked back to ancient Ireland. They land on a cliff on a misty island. How will they find the story they are looking for? It will take a Viking invasion, the help of a jolly monk, and a lot of courage for Jack and Annie to succeed in Viking Ships at Sunrise.

Did you know that there¡¯s a Magic Tree House book for every kid?

Magic Tree House: Adventures with Jack and Annie, perfect for readers who are just beginning chapter books
Merlin Missions: More challenging adventures for the experienced reader
Super Edition: A longer and more dangerous adventure
Fact Trackers: Nonfiction companions to your favorite Magic Tree House adventures

Have more fun with Jack and Annie at MagicTreeHouse.com!

Jack and Annie travel back in time to a monastery in medieval Ireland, where they try to retrieve a lost book while being menaced by Vikings

Their magic tree house takes Jack and Annie back to a monastery in medieval Ireland, where they try to retrieve a lost book while being menaced by Viking raiders.